1100234221 has 8 divisors (see below), whose sum is σ = 1128706488. Its totient is φ = 1071840000.

The previous prime is 1100234171. The next prime is 1100234281. The reversal of 1100234221 is 1224320011.

It can be written as a sum of positive squares in 4 ways, for example, as 375816996 + 724417225 = 19386^2 + 26915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1100234221 - 2⁹ = 1100233709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100234195 and 1100234204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100234281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9601 + ... + 47881.

It is an arithmetic number, because the mean of its divisors is an integer number (141088311).

Almost surely, 2^1100234221 is an apocalyptic number.

It is an amenable number.

1100234221 is a deficient number, since it is larger than the sum of its proper divisors (28472267).

1100234221 is an equidigital number, since it uses as much as digits as its factorization.

1100234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39023.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1100234221 is about 33169.7787300428. The cubic root of 1100234221 is about 1032.3533774328.

Adding to 1100234221 its reverse (1224320011), we get a palindrome (2324554232).

It can be divided in two parts, 110023 and 4221, that added together give a square (114244 = 338²).

The spelling of 1100234221 in words is "one billion, one hundred million, two hundred thirty-four thousand, two hundred twenty-one".